James Mattis, the US defense secretary, has said Washington is still looking for evidence on who carried out Saturday’s chemical weapons attack in Damascus and said his main concern about a military response was how to stop it “escalating out of control”.

The Western liberal order is not in crisis because of Russian disinformation campaigns and electoral interference. Western democracies must take responsibility for a crisis that, ultimately, is homegrown – nurtured by its leaders’ own failure to confront effectively the challenges of globalization.